AH00027: No authentication done error after upgrading from Apache 2.2 to 2.4

Question

I recently updated Apache on Cent OS 7 from 2.2 to 2.4 and after the update I am not able to access the root folder,

I get the following error:

[Fri Apr 29 16:30:19.977037 2016] [core:error] [pid 32095] [client 10.211.55.1:44429] AH00027: No authentication done but request not allowed without authentication for /. Authentication not configured?

As mentioned here in the Authorization section you can still use old directives Order, Allow, Deny, and Satisfy by loading the module (Which I loaded obviously):

LoadModule access_compat_module modules/mod_access_compat.so

My Directory directive is as follow:

<Directory />
    Options FollowSymLinks
    AllowOverride All
</Directory>

I am not really sure what the problem might be, I would really appreciate some help here.

Answer 1

I am not familiar with Cent OS default directory structure, but you will want to follow something like this:

 <Directory />
   Require all denied
   AllowOverride None
   Options None
 </Directory>

 <Directory /PATH ON SERVER TO YOUR DOCUMENT ROOT>
   Require all granted
   AllowOverride All
   Options FollowSymLinks
 </Directory>

To use the Apache 2.4 directives, you will need to load mod_authz_core

 LoadModule authz_core_module modules/mod_authz_core.so

If you don't have any other old (i.e. Order, Allow, Deny, and Satisfy) access control directives, comment out the access_compat module:

 #LoadModule access_compat_module modules/mod_access_compat.so

If you do have other instances of the old 2.2 access control, update them if at all possible to use the Apache 2.4 Require directive, or similar Apache 2.4 authentication directives. It is not a good idea to mix the old and the new. As noted in the documentation, "unpredictable" results can occur.

Answer 2

You need to allow apache read access;

 <Directory />
     Options FollowSymLinks
     AllowOverride All
     Require all granted
 </Directory> 

Should work

Answer 3

For someone who intercepts with the same problem, the solution in my case was to add the following line in the httpd.conf file:

LoadModule authn_core_module modules/mod_authn_core.so